Intensifier.



W. J. MARTIN.

INTENSIFIER.

' APPLICATION FILED SEPT. 2, 1909.

Patented Aug. 27, 1912.

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W. J. MARTIN.

INTENSIFIER.

APPLICATION IILBD SEPT. 2, 1909.

Patented Aug. 27, 1912.

3 SEBBTSSEEBT Z.

lZim' Mwrn, I1/nor UNITED STATES PATENT OFFICE.

WILLIAM J. MARTIN, 01? BUF-EALO, NEW YORK, ASSIGNGR OF UNE-KALI T0 FRANCIS J. GARE, OF BUFFALO, NEW YORK.

INTENSIFIER.

Specification of Letcers Patent.

Patented A11 27, 1912.

T0 au wh0m it may concem:

Be it known that I, VILLIAM J. MARTIN,

a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Intensifiers, of which the following is a specification.

My invention relates to an air-controlled intensifier adapted to inject a quantity of oil against a movable body under a greater pressure than that of the air used to actuate the same.

The primary object o-f my invention is the production of a simple and efiective device of this character particularly adapted for use in connection with car-door looks and 130 S0 construct the device that the air in the air-brake system acts upon the intensifier and actuates the same te force a quantity of oil against a movable body or piston controlling the locking-mechanism of a car-dom look, the pressure against said mo-vable body or piston being considerably greater than the pressure of the air used to 1nanipnlate the intensifier.

Another object of my invention is to coinbine with this intensifier, an inlet-valve provided with a tumbler and t0 30 construct the manipulating parts that a series of difierent movements Wlll be required before air can be introduced into the intensifier, thus avoiding manipulation of the intensifier and its co-acting inletvalve by uninstructed parties.

WVith these and other objects in view, my invention consists in the construction, arrangement, and combination of parts to be hereinafter described and particularly pointed out in the subjoined claims.

In the drawings,Figure 1 is a side eleva tion of my intensifier showing the manner of attach1ng the saine t0 a freight car equipped with a pressureactuated door-lock. Fig. 2 is a central longitudinal section through the intensifier, the inletvalve coacting therewith, and the lower end of a pressureactuatcd car-door look. Fig. 3 is a plan view of the inletend of the intensifier. Fig. 4 is an enlarged section of the inlet-valve taken on line 4-4, Fig. 2. Figs. 5 and 6, are vertical longitudinal sections through the inlet-end of the intensifier showing the parts in difierent positions than shown in F ig. 2. Fig. 7 is a transverse section taken on line 77, Fig. 2.

Referring no-w to the drawings in detail, like letters of reference refer to like parts in the several figures.

The intensifier considered as a whole is designated by the letter A and the inletvalve co-acting therevvith by the letter B;

said valve being secured to the car C and having a supply-pipe B connected thereto Which leads to the ainbrake system of the car.

1) designates a portion of a power-controllecl car-door locking-mechanism, such as was patented to me March 2, 1909, and numbered 913,834. It is my intention to arrange the car-door locking-mechanism so that it requires a pressure of upward of 200 pounds per square inch to manipulate the same; and as the prnnary povveragency employed to manipulate said lockingmechanism 1s diverted from the air-brake system, which is usually under a pressure of less than pounds per square 1noh, my nnproved intensifier is interposed between the locking.

mechanism and the air-brake system.

The locklng-mechan1sm comprises a tube or casmg E hav1ng a bush1ng E clos1ng the lovver end and provided with a winding passage 6 and with depending fianges 6 having inwardly-directed portions 6 whose upper faces are inclinecl for a purpose to appear hereinafter; said flanges 8 and inwardlydirected portions e constituting one member of a coupling.

The inlet-valve B comprises a casing b closed at its upper end by a cap 6 having a central pocket b in WlllCl1 is located a coilspring b acting against the upper end of a valve F normally seated against a valveseat formed in a removable seat-disk F threaded into the casing Z). Coincident with said valve-scat is an air-passage f through whieh the lower reduced end f of the valve F extends; said lower reduced end being somewhat smaller in dia1neter than the air-passage 7 in the disk F so that when the valve F is unseated, the air may pass through said disk. The disk F is seated against a shoulder -tor1ned by re ducing the internal diameter of the valve casing beneath the disk F A second reduotion of the internal diameter of the valve on the disk G so that after the coil-spring casing is made to form a shoulder f against whieh bears alifting-disk G of somewhat smaller diameter than the diameter of the valve-casingbetween the shoulders J and f so that an annular intervening space is provided between the valve-casing and the edge of said disk. A coll-spring 13 is 10- cated 'centrally within the casing and bears at opposite ends against the dis]: F and G and as the disk F is held against move-,

ment by reason of its bei1ig threaded into the valve-casing, said spring acts t0 retain the lifting-disk G against thesh'oulder f'. A further reduction in the internal.diameter of the valve-casing is made'at its lOwer end to provide a shoulder g agairist Which a tumbler-disk H bears; said disk being of somewhat smaller diameter than the interha1 diameter of the valve-casing between the shoulders f" and 9, and between the disks H and G a coil-sprin}; G is interposed; said spring being less poWerful than the spring F so that the disk H may be forced upWard in the valve-casing without causirg the lifting disk G to become unseated. Spring G serves t0 retain the tumbler-disk H in contactwith the shoulder g et the valve-casing. The lifting-disk G is provided with depending lugs g see Fig. 7, and the disk H with an upstanding lug hadapted t0 strike the underside Of' the disk G: when the disk H is elevated and the upperside of the latter is adapted to coine in contact with the lugsa 1 is compressed and the lugs 77, and corne in contact .Wlth their coperating parts, disk G may be forced up into the casing against the action of the ooilspring F In order to prevent manipulation of the valve B except by a specially designed part of the intestifier, the tumbler disk H is pro vided on its underside with two depending lugs 7L and it also is provided with a marginal notch L2, see Figs. 4 and 6, adapted to pass over a lug b formed on the inner side of the valve-oasing. Said notch, bowever, is normally held out of line with the lug b so that the disk H must be given a slight rotary movement to bring the marginal notch 72, in line with the lug b and not until this relation is brought about can the tumbler-disk H be elevated.

The intensifier proper comprises a cylindrical casing I provided with two cylindrical tubes 2', z' ar1anged atrightangles thereto and adapted for connection, respectively, with the lower end of the bushing E of the locking-mechanism and with the valve B. Each of said tubes is reduced between its ends, as at i and fitting onto each of said reduced portions, is a coupling-member J. The coupling-member l1eld on the tube 2', which I Will term the outlet-tube, is provided with a pair of outstanding segmental flangsj adapted to engage the inwardly-directed portions 6 at the lower end of the fianges 6 depending from the bushing E of the locking-mechanism. Said coupling is ro tatable on the outlet-tube so that its outstanding fianges 7' may pass upWard between the inwardly-directed portions 6 o:t said bushings and upon giving said coupling member 21 partial rotation, said flanges j Will ride on the inclined'upper faces of the portions 2 and thus croWd the tube upward against the underside of the bushing E In order to assure a tight connection between thebushing and said tubeso as to prevent leakage of oil at this point, the outer end of the tube is faeed with a gasket 7' The coupling J held onto the tube i which I Wlll term the inlet-tube, has inwardly-directed segmental fianges j vrhioh are adapted to engage the inclined upper sides of outstanding lugs b formed at the lower end of thevalve-casing, the fianges being adapted to pass between the spaces separating the lugs 6 and upon a partial 1'0- tation of the coupling Will ride over the inclinedfaces of said lugs and cause the tube z' to be forced against the lower end et v the valve casing. The inlet-tube 2' also has a gasket at its outer end adapted to bear against the lower end of the valve-casing and prevent the escape of air at this point.

The cylindrical body I of the intensifier has a small bore K and a comparatively large bore K the small bore K being in communication vvith the outlet-tube 2', while the bore K is in communication with the inlet-tube i Opposite ends of the cylin drical body I are closed with screw-plugs L ,01 in any other suitable manner. Arranged to reoiprocatewithin the bore K is a piston K having connection by means of a rod 13 with a smaller piston K adapted to reciprocate in the bore K. The normal position of the pistons I' and K is that shown in-Fig. 2, at or near the right hand end of their respective bores. The bore K is filled with'oil or other suitable liquid which is adapted to be forced out through the outlet-tube z', through the, winding passage 6 in the bushing E and into the tube or casing E of the car-doorlock. Said oil acts against a piston or other movable body M, which in turn acts against a locking plunger m adapted to interlock With the car-door.

The air from the air-brake system is introduced into the intensifier through the in let-tube 2' and acts against the piston K forcing the same to the left in F ig. 2, and by reason 'of the piston K being 1igidl connected with piston I and being of smaller diameter, the oil within the bore K is forced against the piston or movable body M in the casing E with increased pressure. 7

For the purpose of opening the valve F within the valve-casing b, a tube N is provided which extends diametrical1y through the body I of the intensifier and axially through the inlet-tube z' thereof, and it has at one end a head n whose outer face is pro- Vided with a diametral groove n intersecting the bore of the tube N, into which groove the luge Ici depending from the tumbler-disk H areadapted to be entered upon lifting the tube N; but in order to render the manipulation et the tube N diificult, and so that instructed operat0rs only can manipulate it, a pair of internal fianges 71/ 71, are formed in the inlettube 73 said fianges being provided, respectively, with notches n*, n with the notches of the {lange 71, at rightangles to those of the flange n The tube N has a pin n secured thereto which projects therefrom at diametrically opposite points and when said tube is in normal position, the ends of said pin lie in a plane beneath the lower fiange and at a right angle to the notches 12 the1ein, as best shown in Fig. 2.

The body of the intensifier is provided with a stufiing-box 0 at a point diametri cally opposite the inlettube 73 and through said stufling-box the tube N slides. Secured to the lower end of tube N is a handle N for rotating the same and held to said tube directly above the handle, is a cross-head N to which are secured the loWer ends of a pair of upstanding links N lying on opposite sides of the tube N and the body of the intensifier. A handle P is provided for recipr0cating the tube N; said handle having diverging arms 79 passing along opposite sides of the intensifier body and having one of their ends pivotally connected to bosses p formed on opposite sides of said body, said arms being also pivotally connected between their ends to the links N The tube N is provided with an airescape opening R which is exposed when the said tube is in normal position, as shown in Fig. 2.

The operation of the device is as follows,The intensifier is adapted for use only when the candc0r is to be opened; at all. other times it is removed from the car. VVben applying the intensifier for use, it is positioned with the outlet-tube 73 and the inlet-tube z' beneath the bushings E and the valve-casing b, respectively; said bushing and valve-casing each acting as one member of a coupling. The other members of the couplings which are ca1ried upon the tubes 2' and z' are engaged with their coperating members to look the intensifier in position without possibility o:E leakage of air or oil. After the coupling is attached, the handle N at the lower end of the tube N is given a onequarter turn to bring the pin n of said tube in line with the notches n in the loWer fiange 72 so that upon grasping the handle P and raising the same, the tube is elevated until the pin n" enters the space between the fiange u and the flange m, as shown in Fig. 5. During this rotary movement of the tube N the groove 17, in the head of said tube is brought in line with the lugs M on the underside of the tumbling-disk H; and during the lifting of said tube, said lugs are caused to be entered in said groove, as shown in Fig. 5. It is then necessary to move the tube N through a one-quarter of a revolution in either direction to bring the pin n" in line with the notcbes 77/ in the flangem and to bring the notch 72? in the tumbling-diek in line with the lug b* in the valve-casing. Now upon lifting the handle P, the pin 72' passes through the notches in in the flange 72 and the tmnblii1gdisk H causing the disk G to be elevated and strike the lower end of the valve F for the purpose of unseating the latter, as shown in Fig. 6. The air nnder compression then passes through the valve-disk F, through the coil spring G along the edges of the disk G and tumbIing-disk H, through the inlettube '5 and into the body of the intensifier, where it acte upon the piston K and causes the oil or other liquid within the bore K to be forced out through the outlet-tube 2' and against the piston or moVable body M for unlocking the car-dom. W'hen the lockingplunger m has been elevated by the piston M so as to disengage it from the coperatinglocking-elements of the car-door, the handle P is lowered t0 permit the disk G and the tumbling-disk H to become seated, whereupon the coil-spring b in the cap et the valve-casing acts upon the valve F to scat the same. Duringthe low-ering movement of the tube N, the pin 1% has passed through the notches n* in the flange 'n and before the tube can be given a further downward movement, it must be turned to bring the pin n in line with the notches 72 in the fiange n. The handle P is then taken hold of to lower the tube N so as to cause the pin 71- to pass through the notches 7L5, after which the tube is given a further one-quarter turn to bring the pin n at rightang1es to the notches 7L thus locking it against movement. The couplings J are then given 115 a slight turn upon their respective tubes so as to free the interlocking parts th-ereof from those on the bushing E and the valvecasing b, thus permitting the intensifier to be removed from the car. The air within the 120 intensifier escapes thr0ugh tube N and the opening R therein.

Having thus described my invention, what I claim is,

1. An intensifier comprising a cylinder 125 having an air-inlet tube and an outlet tube, and having also bores of two difierent diameters, pistons within said bores and alranged one to operate the other, a coupling member on said inlettube, a coupling mem- 130 ber on said outlet-tube, and a valvebperating device adapted to be operated by different movements to admit a power agent into the cylinder.

2. An intensifier comprising a cylinder having bores of different diameters and inlet and outlet tubes, a piston in each bore arranged one to operate the other, and a valve operating device extending through said cylinder.

8. The combination with an air supplypipe and an inlet-valve connected thereto, of an intensifier comprising a hollow body having a large bore at one end and a comparatively small bore at its other end, an inlettube communicating with the large bore of said body, an outlet-tube communieating with the small bore of said body,

means for coupling said body to said inletvalve, a piston within said large bore adapted to be actuated upon by compressed air introduced through said inlet-tube, a piston fitting within said small bore and rigidly connected to said first-mentioned piston, said last-mentioned piston serving to eject a fiuid-body held within said small bore through said outlet tube, and means to open said inlet-valve to introduce air against said first-mentioned piston.

4. The combination With an air-supply pipe and an inlet-valve connected thereto and normally in closed condition, of an intensifier coupled to said inlet-valve and having a small bore at one end and a large bore at its opposite end, pistons Within said bores rigidly connected together, the smaller of said pistons acting to inject a fluid-body and force the same out of the intensifier and the larger piston being actuated by air introduced through said inlet-valve, a tube rotatable and slidable in said hollowbody adapted to manipulate parts of said inletvalve, and a handle connecting said tube and adapted to cause the latter to slide.

5. In an apparatus of the kind described, a valve comprising a casing, a springpressed valve within said casing and a tumbler-disk also within said casing adapted to be held against movement and prevent actuation of said valve, combined with a hollow cylindrical body having tubes at right-angles thereto, one of said tubes having connection with said inlet valve, said hollow body having bores of difierent diameters, a piston fitting in each of said bores and rigidly connected together, a tube extending diametrically through said hol low body and arranged for rotary and sliding movement, said tube being adapted t0 en gage said tumbler-disk t0 rotate and elevate the same, and a handle connected to said tube to operate the same.

6. In an apparatus of the kind deseribed, a valve comprising a casing, a springpressed valve withinsaid casing, a tumblerdisk also within said casing adapted tobe held against movement and prevent actuation of said valve, a lifting-disk between said valve and said tumbler-disk and a coilspring between said disks, combined with a hollow cylindrieal body having tubes at right-angles thereto, one of said tubes having connection, with said inlet-valve, said hollow body having bores of difierent diameters and corresponding pistons fitting therein and rigidly connected together, a tube extending diametrically through said hollow body and adapted for rotarv and lengthwise movement, said tube being adapted to engage said tunibler-disk to rotate the same and elevate both disks to cause said valve to be opened, a handle on said tube for rotating the same, a pair of links connected to said tube and lyifig on opposite sides of said hollow body, anda swinginghandle pivotally conneoted at one end to said hollow bod; and having pivotal connection between its end*to said links.

7. In an apparatus of the kind described, an inlet-valve comprising a valve-casing, a seat-disk threaded into said casing and provided with a central opening furnishing a valve-seat, a springpressed valve closing against said valve-seat, a tumbler-disk within said casing at the lower end thereof and normally held against movement, a liftingdisk interposed between said Seat-disk and tumbler-disk and springs between said in terposed disk and the tu'mbler-disk and seatdisk, combined with an intensifier coupled to said inlet-valve, a piston arranged for reeiprocal movement within said intensifier, and means embodied in said intensifier for actuating said inlet-valve.

8. The combination with an air supplypipe and an inlet-valve, of a hollow body having an inlet-tube at one end connected to said inlet-valve and an outlet-tube at its other end, said hollow body having bores of two difi"erent diameters and a pair of internal fianges in the tube connected with said inlet valve, said flanges having diametrical notches and the notches of one fiange arranged at right-angles to those of the other, a piston within the larger bore of said hollow body adapted to be aetuated by the air introduced from said supplypipe, a piston within the 'smaller bore of said hollow body and rigidly connected with said first-m ntioned piston, a tube arranged diametrically through said holloW body and having projections at diametrically opposite points'adapted to be moved through the notches of said flanges, and a handle for manipulating said tube.

9. The combination with an air supplypipe and an inlet-valve, of a hollow body having an inlet-tube at one end connected to said inlet-valve and an outlet-tube at its other end, said hollow-body having bores of two difierent diameters, a piston within the larger bore of said body adapted to be actuated by the air introduced from said supply-pipe, a piston vvithin the smaller bore of said body aotnated by said firstmentioned piston, a rod arranged diametrically throngh said 'h0ll0W body and adapted to actuate said inlet-valve, and means to prevent direct lengthwise move ment oi:' said rod.

10. The combination vvith an air supplypipe and an inlet-valve, of a hollovv body having an inlet-tnbe at one end connected to said inlet-valve and an outlettube at its other encl, said hollow body having bores of two different diametcrs, a piston within the larger bore of said body adapted to be actuated by the air introduced from said supply-pipe, a piston within the smaller bore of said body and rigidly connected with said first-mentioned piston, a tube arranged diametrically through said hollow body and having an air escape opening permitting escape of air therethrough vvhen said tube is in normal position.

11. The combination vvith an air supply pipe and a valve for controlling the escape of air therefrom, of an intensifier adapted to receive air frorn said pipe, and a valve operating clevice for operating said valve embodying means to compel its being moved in difierent directions for opening said valve.

12. The combination with an air supply pipe and a valve for controlling the escape of air therefrom, of a cylinder having bores of diferent diarneters and having also an inlet-tnbe in connection with said air supply pipe and an outlet, a piston in each bore arranged one to operate the other, and means to manipulate said valve, said means being operable only by movements in different directions.

13. In combination with a supply pipe for the power-medium and a valve for controlling the escape of the power-medium therefrom, of an intensifier adapted to receive the povver-medium from said supplypipe, and means interposed between said Copies of this patent may be obtained for intensifier and said valve including tumbler mechanism to be operated before said valve can be opened.

14. In combination with a supply pipe for the povvermedium and an intensifier, of means for admitting the povver-medium to said intensifier operable only by difierent movements.

15. A snpplv pipe for the power-medium and an intensifier coperating therewith; combined with a valve controlling the escape et the povvermedinm from said supply pipe to said intensifier, and tumbler n1echanism adapted to be operated to permit opening of said valve.

16. A supply pipe for the powenmedinm and an intensifier co-perating therevvith;

combined with a valve controlling the escape et the power-medium :Erom said supply pipe to said intensifier, tn1nbler mechanism between said valve and said intensifier preventing the opening of said valve, and mechanism for operating said tumbler mechanism and cause said valve to open.

17. A supply pipe for the poweranedium and an intensifier coperating therewith;,

combined with a valve controlling the escape of the power-medium from said supply pipe to said intensifier, tumbler mechanism between said valve and said intensifier preventing the opening of said valve, and mechanism carried by said intensifier movable in difierent directions for operating said tumbler mechanism and cause said valve to open.

18. A supply pipe for the power-medium and an intensifier coperating therewith; combined with a valve controlling the escape of the poWer-medinm from said supply pipe to said intensifier, and tumbler mechanism including an operating rod for causing said valve to open.

In testimony whereof, I have afiixed my signature in the presence of two subscribing vvitnesses.

WILLIAM J. MARTIN. Witnesses:

ELLA C. PLECKHAHN, EMIL NEUHART.

five cents each, by addressing the Commissioner of Patents, Washington, :0. G. 

